Journal
CURRENT NEUROPHARMACOLOGY
Volume 20, Issue 5, Pages 998-1003Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1570159X20666211223122800
Keywords
Parkinson's disease; mild cognitive impairment; drugs; polytherapy; polypharmacy; anticholinergic burden
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This study found that the magnitude of polytherapy and anticholinergic drugs burden does not modulate MCI risk in PD patients, but anti-hypertensive medications were positively associated with PD-MCI while gastroprotective agents were negatively associated.
Background: polytherapy and the anticholinergic activity of several drugs negatively influence cognition in the elderly. However, little is known on the effect on Mild Cognitive Impairment (MCI) in Parkinson's Disease (PD). Methods: patients with PD belonging to the baseline PACOS cohort with full pharmacological data have been included in this study. MCI diagnosis was made according to the MDS level II criteria. Polytherapy was defined as patients assuming >= 6 drugs. The anticholinergic burden has been calculated using the Anticholinergic Drug Scale (ADS). Molecules have been classified according to the ATC classification. Association with MCI has been assessed with a multivariate logistic regression analysis with MCI as the dependent variable. Results: pharmacological data were available for 238 patients (mean age 64.7 +/- 9.7). One hundred (42.0%) were diagnosed with MCI. No association was found in the full multivariate model (correcting for age, sex, disease duration, education, UPDRS-ME, LEDD-DAs) with either polytherapy or the ADS. Concerning drug classes, anti-hypertensive medications were positively associated with PD-MCI (OR 2.02;95%CI 1.04-3.89; p=0.035) while gastroprotective agents were negatively associated (OR 0.51; 95%CI 0.27-0.99; p=0.047). Conclusion: the magnitude of polytherapy and anticholinergic drugs burden does not appear to modulate MCI risk in PD, probably due to cautious prescription patterns. The effect of anti-hypertensive and gastroprotective agents on PD-MCI risk, while needing further confirmations, could be relevant for clinical practice.
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